Finding the Fourth Proportional to 1,554.88, 2,145.96 and 892

Step by Step Solution

1. Step 1: Write the proportion equation
   1,554.88 : 2,145.96 = 892 : x
2. Step 2: Convert to fraction form
   1,554.88/2,145.96 = 892/x
3. Step 3: Cross multiply
   1,554.88x = 2,145.96 × 892
4. Step 4: Simplify right side
   1,554.88x = 1,914,196.32
5. Step 5: Solve for x
   x = 1,914,196.32/1,554.88
6. Step 6: Final answer
   x = 1,231.09